#ifndef PYTHONQTCONVERSION_H
#define PYTHONQTCONVERSION_H

/*
 *
 *  Copyright (C) 2010 MeVis Medical Solutions AG All Rights Reserved.
 *
 *  This library is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This library is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  Further, this software is distributed without any warranty that it is
 *  free of the rightful claim of any third person regarding infringement
 *  or the like.  Any license provided herein, whether implied or
 *  otherwise, applies only to this software file.  Patent licenses, if
 *  any, provided herein do not apply to combinations of this program with
 *  other software, or any other product whatsoever.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
 *
 *  Contact information: MeVis Medical Solutions AG, Universitaetsallee 29,
 *  28359 Bremen, Germany or:
 *
 *  http://www.mevis.de
 *
 */

//----------------------------------------------------------------------------------
/*!
// \file    PythonQtConversion.h
// \author  Florian Link
// \author  Last changed by $Author: florian $
// \date    2006-05
*/
//----------------------------------------------------------------------------------

#include "PythonQt.h"
#include "PythonQtClassInfo.h"
#include "PythonQtMethodInfo.h"
#include "PythonQtMisc.h"

#include <QList>
#include <vector>

typedef PyObject *PythonQtConvertMetaTypeToPythonCB(const void *inObject,
                                                    int metaTypeId);
typedef bool PythonQtConvertPythonToMetaTypeCB(PyObject *inObject,
                                               void *outObject, int metaTypeId,
                                               bool strict);
typedef QVariant
PythonQtConvertPythonSequenceToQVariantListCB(PyObject *inObject);

#define PythonQtRegisterListTemplateConverter(type, innertype)                 \
  {                                                                            \
    int typeId = qRegisterMetaType<type<innertype>>(#type "<" #innertype ">"); \
    PythonQtConv::registerPythonToMetaTypeConverter(                           \
        typeId, PythonQtConvertPythonListToListOfValueType<type<innertype>,    \
                                                           innertype>);        \
    PythonQtConv::registerMetaTypeToPythonConverter(                           \
        typeId, PythonQtConvertListOfValueTypeToPythonList<type<innertype>,    \
                                                           innertype>);        \
  }

#define PythonQtRegisterListTemplateConverterForKnownClass(type, innertype)    \
  {                                                                            \
    int typeId = qRegisterMetaType<type<innertype>>(#type "<" #innertype ">"); \
    PythonQtConv::registerPythonToMetaTypeConverter(                           \
        typeId, PythonQtConvertPythonListToListOfKnownClass<type<innertype>,   \
                                                            innertype>);       \
    PythonQtConv::registerMetaTypeToPythonConverter(                           \
        typeId, PythonQtConvertListOfKnownClassToPythonList<type<innertype>,   \
                                                            innertype>);       \
  }

#define PythonQtRegisterQPairConverter(type1, type2)                           \
  {                                                                            \
    int typeId = qRegisterMetaType<QPair<type1, type2>>("QPair<" #type1        \
                                                        "," #type2 ">");       \
    PythonQtConv::registerPythonToMetaTypeConverter(                           \
        typeId, PythonQtConvertPythonToPair<type1, type2>);                    \
    PythonQtConv::registerMetaTypeToPythonConverter(                           \
        typeId, PythonQtConvertPairToPython<type1, type2>);                    \
  }

#define PythonQtRegisterIntegerMapConverter(type, innertype)                   \
  {                                                                            \
    int typeId = qRegisterMetaType<type<int, innertype>>(                      \
        #type "<int, " #innertype ">");                                        \
    PythonQtConv::registerPythonToMetaTypeConverter(                           \
        typeId,                                                                \
        PythonQtConvertPythonToIntegerMap<type<int, innertype>, innertype>);   \
    PythonQtConv::registerMetaTypeToPythonConverter(                           \
        typeId,                                                                \
        PythonQtConvertIntegerMapToPython<type<int, innertype>, innertype>);   \
  }

#define PythonQtRegisterListTemplateQPairConverter(listtype, type1, type2)     \
  {                                                                            \
    qRegisterMetaType<QPair<type1, type2>>("QPair<" #type1 "," #type2 ">");    \
    int typeId = qRegisterMetaType<listtype<QPair<type1, type2>>>(             \
        #listtype "<QPair<" #type1 "," #type2 ">>");                           \
    PythonQtConv::registerPythonToMetaTypeConverter(                           \
        typeId,                                                                \
        PythonQtConvertPythonListToListOfPair<listtype<QPair<type1, type2>>,   \
                                              type1, type2>);                  \
    PythonQtConv::registerMetaTypeToPythonConverter(                           \
        typeId,                                                                \
        PythonQtConvertListOfPairToPythonList<listtype<QPair<type1, type2>>,   \
                                              type1, type2>);                  \
  }

#define PythonQtRegisterToolClassesTemplateConverter(innertype)                \
  PythonQtRegisterListTemplateConverter(QList, innertype);                     \
  PythonQtRegisterListTemplateConverter(QVector, innertype);                   \
  PythonQtRegisterListTemplateConverter(std::vector, innertype);

#define PythonQtRegisterToolClassesTemplateConverterForKnownClass(innertype)   \
  PythonQtRegisterListTemplateConverterForKnownClass(QList, innertype);        \
  PythonQtRegisterListTemplateConverterForKnownClass(QVector, innertype);      \
  PythonQtRegisterListTemplateConverterForKnownClass(std::vector, innertype);

//! a static class that offers methods for type conversion
class PYTHONQT_EXPORT PythonQtConv {

public:
  //! get a ref counted True or False Python object
  static PyObject *GetPyBool(bool val);

  //! converts the Qt parameter given in \c data, interpreting it as a \c info
  //! parameter, into a Python object,
  static PyObject *
  ConvertQtValueToPython(const PythonQtMethodInfo::ParameterInfo &info,
                         const void *data);

  //! convert python object to Qt (according to the given parameter) and if the
  //! conversion should be strict (classInfo is currently not used anymore)
  static void *ConvertPythonToQt(const PythonQtMethodInfo::ParameterInfo &info,
                                 PyObject *obj, bool strict,
                                 PythonQtClassInfo *classInfo,
                                 void *alreadyAllocatedCPPObject = NULL);

  //! creates a data storage for the passed parameter type and returns a void
  //! pointer to be set as arg[0] of qt_metacall
  static void *
  CreateQtReturnValue(const PythonQtMethodInfo::ParameterInfo &info);

  //! converts QString to Python string (unicode!)
  static PyObject *QStringToPyObject(const QString &str);

  //! converts QStringList to Python tuple
  static PyObject *QStringListToPyObject(const QStringList &list);

  //! converts QStringList to Python list
  static PyObject *QStringListToPyList(const QStringList &list);

  //! get string representation of py object
  static QString PyObjGetRepresentation(PyObject *val);

  //! get string value from py object
  static QString PyObjGetString(PyObject *val) {
    bool ok;
    QString s = PyObjGetString(val, false, ok);
    return s;
  }
  //! get string value from py object
  static QString PyObjGetString(PyObject *val, bool strict, bool &ok);
  //! get bytes from py object
  static QByteArray PyObjGetBytes(PyObject *val, bool strict, bool &ok);
  //! get int from py object
  static int PyObjGetInt(PyObject *val, bool strict, bool &ok);
  //! get int64 from py object
  static qint64 PyObjGetLongLong(PyObject *val, bool strict, bool &ok);
  //! get int64 from py object
  static quint64 PyObjGetULongLong(PyObject *val, bool strict, bool &ok);
  //! get double from py object
  static double PyObjGetDouble(PyObject *val, bool strict, bool &ok);
  //! get bool from py object
  static bool PyObjGetBool(PyObject *val, bool strict, bool &ok);

  //! create a string list from python sequence
  static QStringList PyObjToStringList(PyObject *val, bool strict, bool &ok);

  //! convert python object to qvariant, if type is given it will try to create
  //! a qvariant of that type, otherwise it will guess from the python type
  static QVariant PyObjToQVariant(PyObject *val, int type = -1);

  //! convert QVariant from PyObject
  static PyObject *QVariantToPyObject(const QVariant &v);

  static PyObject *QVariantHashToPyObject(const QVariantHash &m);
  static PyObject *QVariantMapToPyObject(const QVariantMap &m);
  static PyObject *QVariantListToPyObject(const QVariantList &l);

  //! get human readable string from CPP object (when the metatype is known)
  static QString CPPObjectToString(int type, const void *data);

  //! register a converter callback from python to cpp for given metatype
  static void
  registerPythonToMetaTypeConverter(int metaTypeId,
                                    PythonQtConvertPythonToMetaTypeCB *cb) {
    _pythonToMetaTypeConverters.insert(metaTypeId, cb);
  }

  //! register a converter callback from cpp to python for given metatype
  static void
  registerMetaTypeToPythonConverter(int metaTypeId,
                                    PythonQtConvertMetaTypeToPythonCB *cb) {
    _metaTypeToPythonConverters.insert(metaTypeId, cb);
  }

  //! set a callback that is called when a Python sequence should be converted
  //! to a QVariantList to allow special conversion.
  static void setPythonSequenceToQVariantListCallback(
      PythonQtConvertPythonSequenceToQVariantListCB *cb) {
    _pythonSequenceToQVariantListCB = cb;
  }

  //! converts the Qt parameter given in \c data, interpreting it as a \c type
  //! registered qvariant/meta type, into a Python object,
  static PyObject *convertQtValueToPythonInternal(int type, const void *data);

  //! creates a copy of given object, using the QMetaType
  static PyObject *createCopyFromMetaType(int type, const void *object);

  //! cast wrapper to given className if possible
  static void *castWrapperTo(PythonQtInstanceWrapper *wrapper,
                             const QByteArray &className, bool &ok);

  static bool convertToPythonQtObjectPtr(PyObject *obj,
                                         void * /* PythonQtObjectPtr* */ outPtr,
                                         int /*metaTypeId*/, bool /*strict*/);
  static PyObject *
  convertFromPythonQtObjectPtr(const void * /* PythonQtObjectPtr* */ inObject,
                               int /*metaTypeId*/);
  static bool convertToQListOfPythonQtObjectPtr(
      PyObject *obj, void * /* QList<PythonQtObjectPtr>* */ outList,
      int /*metaTypeId*/, bool /*strict*/);
  static PyObject *convertFromQListOfPythonQtObjectPtr(
      const void * /* QList<PythonQtObjectPtr>* */ inObject,
      int /*metaTypeId*/);
  static PyObject *convertFromStringRef(const void *inObject,
                                        int /*metaTypeId*/);

  //! Returns the name of the equivalent CPP type (for signals and slots)
  static QByteArray getCPPTypeName(PyObject *type);

  //! Returns if the given object is a string (or unicode string)
  static bool isStringType(PyTypeObject *type);

public:
  static PythonQtValueStorage<qint64, 128> global_valueStorage;
  static PythonQtValueStorage<void *, 128> global_ptrStorage;
  static PythonQtValueStorageWithCleanup<QVariant, 128> global_variantStorage;

protected:
  static QHash<int, PythonQtConvertMetaTypeToPythonCB *>
      _metaTypeToPythonConverters;
  static QHash<int, PythonQtConvertPythonToMetaTypeCB *>
      _pythonToMetaTypeConverters;
  static PythonQtConvertPythonSequenceToQVariantListCB
      *_pythonSequenceToQVariantListCB;

  //! handle automatic conversion of some special types (QColor, QBrush, ...)
  static void *handlePythonToQtAutoConversion(int typeId, PyObject *obj,
                                              void *alreadyAllocatedCPPObject);

  //! converts the list of pointers of given type to Python
  static PyObject *ConvertQListOfPointerTypeToPythonList(
      QList<void *> *list, const PythonQtMethodInfo::ParameterInfo &info);
  //! tries to convert the python object to a QList of pointers to \c type
  //! objects, returns true on success
  static bool ConvertPythonListToQListOfPointerType(
      PyObject *obj, QList<void *> *list,
      const PythonQtMethodInfo::ParameterInfo &info, bool strict);

  //! helper template method for conversion from Python to QVariantMap/Hash
  template <typename Map>
  static void pythonToMapVariant(PyObject *val, QVariant &result);
  //! helper template function for QVariantMapToPyObject/QVariantHashToPyObject
  template <typename Map> static PyObject *mapToPython(const Map &m);
};

template <class ListType, class T>
PyObject *
PythonQtConvertListOfValueTypeToPythonList(const void * /*QList<T>* */ inList,
                                           int metaTypeId) {
  ListType *list = (ListType *)inList;
  static const int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(
      QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr
        << "PythonQtConvertListOfValueTypeToPythonList: unknown inner type "
        << QMetaType::typeName(metaTypeId) << std::endl;
  }
  PyObject *result = PyTuple_New(list->size());
  int i = 0;
  Q_FOREACH (const T &value, *list) {
    PyTuple_SET_ITEM(
        result, i,
        PythonQtConv::convertQtValueToPythonInternal(innerType, &value));
    i++;
  }
  return result;
}

template <class ListType, class T>
bool PythonQtConvertPythonListToListOfValueType(PyObject *obj,
                                                void * /*QList<T>* */ outList,
                                                int metaTypeId,
                                                bool /*strict*/) {
  ListType *list = (ListType *)outList;
  static const int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(
      QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr
        << "PythonQtConvertPythonListToListOfValueType: unknown inner type "
        << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count >= 0) {
      result = true;
      PyObject *value;
      for (int i = 0; i < count; i++) {
        value = PySequence_GetItem(obj, i);
        // this is quite some overhead, but it avoids having another large
        // switch...
        QVariant v = PythonQtConv::PyObjToQVariant(value, innerType);
        Py_XDECREF(value);
        if (v.isValid()) {
          list->push_back(qvariant_cast<T>(v));
        } else {
          result = false;
          break;
        }
      }
    }
  }
  return result;
}

//--------------------------------------------------------------------------------------------------------------------

template <class ListType, class T>
PyObject *
PythonQtConvertListOfKnownClassToPythonList(const void * /*QList<T>* */ inList,
                                            int metaTypeId) {
  ListType *list = (ListType *)inList;
  static PythonQtClassInfo *innerType =
      PythonQt::priv()->getClassInfo(PythonQtMethodInfo::getInnerListTypeName(
          QByteArray(QMetaType::typeName(metaTypeId))));
  if (innerType == NULL) {
    std::cerr
        << "PythonQtConvertListOfKnownClassToPythonList: unknown inner type "
        << innerType->className().constData() << std::endl;
  }
  PyObject *result = PyTuple_New(list->size());
  int i = 0;
  Q_FOREACH (const T &value, *list) {
    T *newObject = new T(value);
    PythonQtInstanceWrapper *wrap =
        (PythonQtInstanceWrapper *)PythonQt::priv()->wrapPtr(
            newObject, innerType->className());
    wrap->_ownedByPythonQt = true;
    PyTuple_SET_ITEM(result, i, (PyObject *)wrap);
    i++;
  }
  return result;
}

template <class ListType, class T>
bool PythonQtConvertPythonListToListOfKnownClass(PyObject *obj,
                                                 void * /*QList<T>* */ outList,
                                                 int metaTypeId,
                                                 bool /*strict*/) {
  ListType *list = (ListType *)outList;
  static PythonQtClassInfo *innerType =
      PythonQt::priv()->getClassInfo(PythonQtMethodInfo::getInnerListTypeName(
          QByteArray(QMetaType::typeName(metaTypeId))));
  if (innerType == NULL) {
    std::cerr
        << "PythonQtConvertListOfKnownClassToPythonList: unknown inner type "
        << innerType->className().constData() << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count >= 0) {
      result = true;
      PyObject *value;
      for (int i = 0; i < count; i++) {
        value = PySequence_GetItem(obj, i);
        if (PyObject_TypeCheck(value, &PythonQtInstanceWrapper_Type)) {
          PythonQtInstanceWrapper *wrap = (PythonQtInstanceWrapper *)value;
          bool ok;
          T *object = (T *)PythonQtConv::castWrapperTo(
              wrap, innerType->className(), ok);
          Py_XDECREF(value);
          if (ok) {
            list->push_back(*object);
          } else {
            result = false;
            break;
          }
        } else {
          Py_XDECREF(value);
          result = false;
          break;
        }
      }
    }
  }
  return result;
}

//--------------------------------------------------------------------------------------------------------------------

template <class T1, class T2>
PyObject *PythonQtConvertPairToPython(const void * /*QPair<T1,T2>* */ inPair,
                                      int metaTypeId) {
  QPair<T1, T2> *pair = (QPair<T1, T2> *)inPair;
  static int innerType1 = -1;
  static int innerType2 = -1;
  if (innerType1 == -1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(
        QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType1 = QMetaType::type(names.at(0).trimmed());
    innerType2 = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType1 == QVariant::Invalid || innerType2 == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPairToPython: unknown inner type "
              << QMetaType::typeName(metaTypeId) << std::endl;
  }
  PyObject *result = PyTuple_New(2);
  PyTuple_SET_ITEM(
      result, 0,
      PythonQtConv::convertQtValueToPythonInternal(innerType1, &pair->first));
  PyTuple_SET_ITEM(
      result, 1,
      PythonQtConv::convertQtValueToPythonInternal(innerType2, &pair->second));
  return result;
}

template <class T1, class T2>
bool PythonQtConvertPythonToPair(PyObject *obj,
                                 void * /*QPair<T1,T2>* */ outPair,
                                 int metaTypeId, bool /*strict*/) {
  QPair<T1, T2> *pair = (QPair<T1, T2> *)outPair;
  static int innerType1 = -1;
  static int innerType2 = -1;
  if (innerType1 == -1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(
        QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType1 = QMetaType::type(names.at(0).trimmed());
    innerType2 = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType1 == QVariant::Invalid || innerType2 == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPythonToPair: unknown inner type "
              << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count == 2) {
      result = true;
      PyObject *value;

      value = PySequence_GetItem(obj, 0);
      // this is quite some overhead, but it avoids having another large
      // switch...
      QVariant v = PythonQtConv::PyObjToQVariant(value, innerType1);
      Py_XDECREF(value);
      if (v.isValid()) {
        pair->first = qvariant_cast<T1>(v);
      } else {
        return false;
      }

      value = PySequence_GetItem(obj, 1);
      // this is quite some overhead, but it avoids having another large
      // switch...
      v = PythonQtConv::PyObjToQVariant(value, innerType2);
      Py_XDECREF(value);
      if (v.isValid()) {
        pair->second = qvariant_cast<T2>(v);
      } else {
        return false;
      }
    }
  }
  return result;
}

//--------------------------------------------------------------------------------------------------------------------

template <class ListType, class T1, class T2>
PyObject *PythonQtConvertListOfPairToPythonList(
    const void * /*QList<QPair<T1,T2> >* */ inList, int metaTypeId) {
  ListType *list = (ListType *)inList;
  static int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(
      QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertListOfPairToPythonList: unknown inner type "
              << QMetaType::typeName(metaTypeId) << std::endl;
  }
  PyObject *result = PyTuple_New(list->size());
  int i = 0;
  typedef const QPair<T1, T2> Pair;
  Q_FOREACH (Pair &value, *list) {
    PyObject *object = PythonQtConvertPairToPython<T1, T2>(&value, innerType);
    PyTuple_SET_ITEM(result, i, object);
    i++;
  }
  return result;
}

template <class ListType, class T1, class T2>
bool PythonQtConvertPythonListToListOfPair(
    PyObject *obj, void * /*QList<QPair<T1,T2> >* */ outList, int metaTypeId,
    bool /*strict*/) {
  ListType *list = (ListType *)outList;
  static int innerType = PythonQtMethodInfo::getInnerTemplateMetaType(
      QByteArray(QMetaType::typeName(metaTypeId)));
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPythonListToListOfPair: unknown inner type "
              << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PySequence_Check(obj)) {
    int count = PySequence_Size(obj);
    if (count >= 0) {
      result = true;
      PyObject *value;
      for (int i = 0; i < count; i++) {
        QPair<T1, T2> pair;
        value = PySequence_GetItem(obj, i);
        if (PythonQtConvertPythonToPair<T1, T2>(value, &pair, innerType,
                                                false)) {
          Py_XDECREF(value);
          list->push_back(pair);
        } else {
          Py_XDECREF(value);
          result = false;
          break;
        }
      }
    }
  }
  return result;
}

//--------------------------------------------------------------------------------------------------------------------

template <class MapType, class T>
PyObject *
PythonQtConvertIntegerMapToPython(const void * /*QMap<int, T>* */ inMap,
                                  int metaTypeId) {
  MapType *map = (MapType *)inMap;
  static int innerType = -1;
  if (innerType == -1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(
        QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertIntegerMapToPython: unknown inner type "
              << QMetaType::typeName(metaTypeId) << std::endl;
  }

  PyObject *result = PyDict_New();
  typename MapType::const_iterator t = map->constBegin();
  PyObject *key;
  PyObject *val;
  for (; t != map->constEnd(); t++) {
    key = PyInt_FromLong(t.key());
    val = PythonQtConv::convertQtValueToPythonInternal(innerType, &t.value());
    PyDict_SetItem(result, key, val);
    Py_DECREF(key);
    Py_DECREF(val);
  }
  return result;
}

template <class MapType, class T>
bool PythonQtConvertPythonToIntegerMap(PyObject *val,
                                       void * /*QMap<int, T>* */ outMap,
                                       int metaTypeId, bool /*strict*/) {
  MapType *map = (MapType *)outMap;
  static int innerType = -1;
  if (innerType == -1) {
    QByteArray innerTypes = PythonQtMethodInfo::getInnerTemplateTypeName(
        QByteArray(QMetaType::typeName(metaTypeId)));
    QList<QByteArray> names = innerTypes.split(',');
    innerType = QMetaType::type(names.at(1).trimmed());
  }
  if (innerType == QVariant::Invalid) {
    std::cerr << "PythonQtConvertPythonToIntegerMap: unknown inner type "
              << QMetaType::typeName(metaTypeId) << std::endl;
  }
  bool result = false;
  if (PyMapping_Check(val)) {
    result = true;
    PyObject *items = PyMapping_Items(val);
    if (items) {
      int count = PyList_Size(items);
      PyObject *value;
      PyObject *key;
      PyObject *tuple;
      for (int i = 0; i < count; i++) {
        tuple = PyList_GetItem(items, i);
        key = PyTuple_GetItem(tuple, 0);
        value = PyTuple_GetItem(tuple, 1);

        bool ok;
        int intKey = PythonQtConv::PyObjGetInt(key, false, ok);
        // this is quite some overhead, but it avoids having another large
        // switch...
        QVariant v = PythonQtConv::PyObjToQVariant(value, innerType);
        if (v.isValid() && ok) {
          map->insert(intKey, qvariant_cast<T>(v));
        } else {
          result = false;
          break;
        }
      }
      Py_DECREF(items);
    }
  }
  return result;
}

#endif
